Base | Representation |
---|---|
bin | 10110111111010… |
… | …001001011000001 |
3 | 222212201210012120 |
4 | 112333101023001 |
5 | 1242213343121 |
6 | 102134314453 |
7 | 12362155422 |
oct | 2677211301 |
9 | 885653176 |
10 | 385684161 |
11 | 188788245 |
12 | a91b8a29 |
13 | 61b9b4a5 |
14 | 39319649 |
15 | 23cd6bc6 |
hex | 16fd12c1 |
385684161 has 8 divisors (see below), whose sum is σ = 514616160. Its totient is φ = 256937472.
The previous prime is 385684153. The next prime is 385684163. The reversal of 385684161 is 161486583.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 385684161 - 23 = 385684153 is a prime.
It is not an unprimeable number, because it can be changed into a prime (385684163) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41395 + ... + 49848.
It is an arithmetic number, because the mean of its divisors is an integer number (64327020).
Almost surely, 2385684161 is an apocalyptic number.
It is an amenable number.
385684161 is a deficient number, since it is larger than the sum of its proper divisors (128931999).
385684161 is a wasteful number, since it uses less digits than its factorization.
385684161 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 92655.
The product of its digits is 138240, while the sum is 42.
The square root of 385684161 is about 19638.8431685779. The cubic root of 385684161 is about 727.9092997990.
The spelling of 385684161 in words is "three hundred eighty-five million, six hundred eighty-four thousand, one hundred sixty-one".
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